diff --git a/apps/api/src/routes/pings.ts b/apps/api/src/routes/pings.ts
index 193a44f..e64c847 100644
--- a/apps/api/src/routes/pings.ts
+++ b/apps/api/src/routes/pings.ts
@@ -97,8 +97,8 @@ export const ingest = new Elysia()
       monitor_id:       t.String(),
       scheduled_at:     t.Optional(t.Nullable(t.String())),
       jitter_ms:        t.Optional(t.Nullable(t.Number())),
-      status_code:      t.Optional(t.Number()),
-      latency_ms:       t.Optional(t.Number()),
+      status_code:      t.Optional(t.Nullable(t.Number())),
+      latency_ms:       t.Optional(t.Nullable(t.Number())),
       up:               t.Boolean(),
       error:            t.Optional(t.Nullable(t.String())),
       cert_expiry_days: t.Optional(t.Nullable(t.Number())),
diff --git a/apps/monitor/src/runner.rs b/apps/monitor/src/runner.rs
index a5dcf8a..79b1da1 100644
--- a/apps/monitor/src/runner.rs
+++ b/apps/monitor/src/runner.rs
@@ -342,7 +342,7 @@ async fn post_result(
     token: &str,
     result: PingResult,
 ) -> Result<()> {
-    tokio::time::timeout(
+    let resp = tokio::time::timeout(
         std::time::Duration::from_secs(10),
         client
             .post(format!("{coordinator_url}/internal/ingest"))
@@ -352,5 +352,11 @@ async fn post_result(
     ).await
         .map_err(|_| anyhow::anyhow!("post_result timed out"))?
         .map_err(|e| anyhow::anyhow!("{e}"))?;
+
+    if !resp.status().is_success() {
+        let status = resp.status();
+        let body = resp.text().await.unwrap_or_default();
+        return Err(anyhow::anyhow!("ingest returned {status}: {body}"));
+    }
     Ok(())
 }